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...because Sarit’s research showed that the Kedmanee keyboard invented by Suwanprasert Kedmanee utilized the right hand more than the left hand and, the little finger of the right hand was used most heavily of all.

Research conducted by the National Research Council found that typists were able to type 25.8% faster with the Patachote keyboard than with the Kedmanee keyboard and [the use of the Patachote keyboard] could also help reduce finger pain from typing.